Beam-splicing clamp.



T. SIDERITS & G. MURII.

BEAM SPLIOING CLAMP. APPLICATION FILED IEB.17, 191av Patented Jan. 13, 1914.

. v V k 6 All \avoided and 60 showing the structural features of the rub- UNITED STATES PATENT OFFICE. THOMAS sInEBI s AND GAlBBIE-L norm, or mnwavxnn, W sconsin. BEAM-BPLIQING CLAMP.

Specification of Letters Patent Patented Jan, 13,

Application filed February .17, 1313. Serial 80. 749,014. v

1, l, represent the lapped ends of beams about which is fitted a 'strap 2 which is bent in rectangular form to correspond to the contour of the beams. The ends 3, 3, of the strap are brought together and alined for the reception of a retaining bolt 4, which bolt asses through apertures in said strap ends. 1 unted uponthe bolt is an eccentric 5 provided with an actuating handle 5' whereby the eccentric is rocked to effect a release and lock of the timbers. face of the eccentric of the beam 1 is an flat face of the same being adapted to 811? gage the correspondin flat face of the beam. This shoe is preferab y formed with ribbed edges as shown, and the outer ribbed edge 7 is inclined-from top to bottom to form a wedge, the surface of which is adapted to" be engaged by the eccentric and. for the pur ose of more rigid locking engagement sai in- To all whom it may concern: 7 Be it known that we, THOMAS SIonRrrs and GABRIEL MURL, both citizens of the United States, and residents of Milwaukee, 5 in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Beam-Splicing ,Olamps;--and we do hereby declare that the following is a full, clear,.and exact descrip- 10 tion thereof.

Our invention refers to beam-splicing clamps, its object being to provide a simple, economical and effective device of this character. I

Specific objects of our invention are to provide a broad friction shoe for the purpose of presenting a large area to one of the members to be clamped, whereby slippage is at the same. time tendency. to mar sardmember is prevented. i I Another-object of our invention is to provide a wide scope of adjustment with reference to the clamp; he means for accomplishing this result bei g the arrangement whereby one face of the shoe is wedge shaped or inclined, said wedge-shaped face being adapted to co-act with a locking eccentric and is adjustable with\ relation to said eccentric.

adjustable shoe 6, the

whereby the face of the eccentric may be nested within any one of the waves depending upon the vertical adjustment of the shoe. The vertical inner and outer ribs of the shoe are connected by cross-ribs in the form of loops 7, which loops are adapted to engage lugs 8 that project inwardly from the ad- Still another object of our in vention is to acent faces of tliestrap ends, whereby the provide a shiftable toothed rub-plate that is shoe is permanentlysuspcnded in connection interposed between the clamped members with the strap when theclamping device is whereby they are held against end-play or not in use, the lugs 8, as shown, beingso poslippage incidental to vibration. sitioned as to not interfere with play of the 3.5- VVith the above and other minor objects wedge-shaped clamping shoe in-elther a verin view the invention consists in certain etical or horizontal direction. The rear cnliarities of construction and combination stretch 2 of the strap 2 which engages a face of the beam 1 is preferably formed with a tapered biting flange 2", adapted to enter the face of the beam when of parts as set forth hereinafter with reference to the accompanying drawings and 40 subsequently claimed.

In the drawings Figure 1 represents a. side elevation of a clamping device embodying the features of our invention, the same being shown in the position it assumes when clamping a pair of beams; Fig. 2, a sectional view ofthe same, the section being indicated by line 2-2 of Fig. ,1; Fig. 3, another detailed sectional View, the section being indicated by line 3+3 of Fig. 2, the section wise slippage of the device.

Interposed between the clamped beams 1 and 1 is a metallic rub-plate 9, which rubplate is provided with two series of spurs spurs are adapted to enter the adjacent faces of the beams incidental to the clamping of the same, the said rub-plate serving to more effectually lock the beams together and plate and its connection to the clampin strap, and Fig. 4,'a fragmentary detailed plan sectional view of a modified form ofclamping shoe.

Referring by characters to the drawing,

bration or strain. This rub-plate ,is vided with laterally extending Ioopstlthat engagethe side stretches o the strap 2,

5 whereby said rub-plate suspended to the Interposed between the and the adjacent face:-

chned surface is preferably waved as shown,.

which flange is the clamp is tightened to thus prevent end- 10 that extend from its opposite faces, w ich prevent endwise slippage incidental to viproclamping device, this connection serving to permit movement of said plate upon the stra in either direction, whereby movement of this same will accommodate various thicknesses of the timbers to be spliced'with relation to the outer clamped edges thereof.

As shown in Fig. 4, we provide a strap 12, the side stretches of which are slotted for the reception of end studs 13 of a clamping shoe 14, which shoe, as shown, maybe provided with a. transverse biting rib 14' that is similar to the rib 2 described in connection with one of the stretches of the strap 2. This rub-plate is ad'usted against the adj acent face of one of t e clamped members by x a spindle 15 which is in threaded union with a corresponding threaded a ertured hub of the strap 14. The said spin 1e and clampin shoe in some instances may be substitute for the eccentric and wedge-shaped clamping shoe shown in Figs. 1 and 2 of the drawings.

7 From the foregoing description it is apparent that when it is desired to splice a column that the ends of two beam sections may be readily slippedinto the strap and adjusted vertically to obtain the desired height, the rub-plate 9 being interposed thcrebctween. After the vertical adjustment has been effected the wedge-shaped clamping shoe will automatically drop to an engaging position with the adjacent face of the "beam to thus take up the space intervening between-said beam face and the eccentric. Thereafter the eccentric is turned up into 'the position shown, whereby the wedge is securely forced. against the beam, causing the strap to effect a draw, to thus securely clamp the members together, the eccentric in whic posit on being locked by its handle 5 tending between the shoe that is swung to a position sli htly beyond the axis upon which the 60061113316 is revolved.

. From the foregoing it is ap iarent that the above described clamping avice may be utilized for scafi'old-buildmg or the like, it being particularly designed for use inconnection with building concrete mold structures wherein it is desirable to use the timbers over and over a ain and under ordinary conditions such'tim ers must be cut to the desired lengths. In our apparatus this is obviated and after using the timbers they can readily be knocked down without damage thereto and again utilized as stated.

WVe claim:

In a beam clamp having alooped strap, a retaining bolt for securing the strap cm s, and a locking eccentric mounted upon the retaining bolt; the combination of a wedgeshaped shoe having a fluted rib-face and a fiat rib-face connected at their ends, the fluted face of the shoe being engageable with the eccentric and the flat face adapted to abut one of: the members to be clamped, and lugs projecting from the strap ends exshoe is permanently retained but is capable of transverse and lateral movement incidental to action of the eccentric or manual adjustment.

Iii-testimony that we claim the foregoing we have hereunto set our hands at Milwaukee in the county of Milwaukee and State 01 Wisconsin in the presence of two witnesses.

THOMAS SIDER-ITS. GABRIEL MURL.

Witnesses Geo. W. Sonny, M. E. Downer.

c5 ribs whereby the 

